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Merge pull request #20411 from aaronlehmann/strengthen-TestPullFromCentralRegistryImplicitRefParts

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Improve resilience of TestPullFromCentralRegistryImplicitRefParts
This commit is contained in:
David Calavera 2016-02-17 15:08:20 -08:00
commit e9234d8aaf
1 changed files with 17 additions and 0 deletions
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17
integration-cli/docker_cli_pull_test.go
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@ -86,6 +86,23 @@ func (s *DockerHubPullSuite) TestPullFromCentralRegistryImplicitRefParts(c *chec
"index.docker.io/library/hello-world",
} {
out := s.Cmd(c, "pull", i)
v1Retries := 0
for strings.Contains(out, "this image was pulled from a legacy registry") {
// Some network errors may cause fallbacks to the v1
// protocol, which would violate the test's assumption
// that it will get the same images. To make the test
// more robust against these network glitches, allow a
// few retries if we end up with a v1 pull.
if v1Retries > 2 {
c.Fatalf("too many v1 fallback incidents when pulling %s", i)
}
s.Cmd(c, "rmi", i)
out = s.Cmd(c, "pull", i)
v1Retries++
}
c.Assert(out, checker.Contains, "Image is up to date for hello-world:latest")
}